• 대한정형도수물리치료학회지
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• 제16권2호
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• pp.76-81
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• 2010

Purpose: This study examined how the degrees of muscle activity of Rectus Femoris and Tibialis Anterior during the four phases of walking vary according to three different treadmill slopes of $0^0$, $7^0$, and $15^0$. Methods: Subjects were 14 randomly selected healthy students attending G University in Seoul, Korea who had never had articular problems with lower limb and had no difficulties walking at the time of study. Results: 1) With respect to Rectus Femoris, in every phase of both forward and backward walking, there were significant differences among all of the slope degrees (p <.05), while the activity increased with increased slope degrees in every phase of backward walking. 2) For Tibialis Anterior, only in P2 and P3 of both forward and backward walking there were significant differences in every slope (p <.05). Conclusion: Both Rectus Femoris and Tibialis Anterior were found to be more active during backward walking compared to backward walking. In addition, the activity degree of Rectus Femoris was high between the early part of two foot support phase and the early part of one foot support phase, whereas that of Tibialis Anterior was high between the early part of one foot support phase and the latter part of both foot support phase.

• Journal of Preventive Medicine and Public Health
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• 제56권6호
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• pp.552-562
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• 2023

Objectives: Adolescents who engage in unhealthy behaviors are particularly vulnerable to anxiety. We hypothesized that participation in physical activity could influence the relationship between anxiety and unhealthy behaviors in adolescents. These behaviors include smoking, alcohol consumption, and unsafe sexual activity. Methods: This study included 50 301 students from the first year of middle school to the third year of high school, all from Korea. The unhealthy adolescent behaviors examined included current alcohol consumption, current smoking, and unsafe sexual behavior. Anxiety levels were assessed using the Generalized Anxiety Disorder-7 questionnaire (GAD-7). Results: The participants had a mean age of 15.19 years and an average GAD-7 score of 4.23. No significant differences were observed in GAD-7 score among exercising participants when categorized by smoking status (p=0.835) or unsafe sexual behavior (p=0.489). In contrast, participants in the non-exercise group who engaged in these behaviors demonstrated significantly higher GAD-7 scores (p<0.001 and 0.016, respectively). The only significant interaction was found between unsafe sexual behavior and exercise (p=0.009). Based on logistic regression analysis, within the non-exercise group, significant positive associations were observed between current smoking and anxiety (odds ratio [OR], 1.36; 95% confidence interval [CI], 1.18 to 1.57), as well as between unsafe sexual behavior and anxiety (OR, 1.33; 95% CI, 1.02 to 1.73). However, within the exercise group, no significant association was found between anxiety and either smoking or unsafe sexual behavior. Furthermore, no significant interaction was observed between unhealthy behaviors and exercise. Conclusions: These findings are insufficient to conclude that physical activity influences the relationship between unhealthy behaviors and anxiety.

• 한국식품영양과학회지
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• 제30권2호
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• pp.350-356
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• 2001

우리나라에도 심혈관질환으로 인한 사망률이 점차 증가하고 있다. 이에 본 연구에서는 채식과 심혈관질환과의 관계를 규명하기 위한 연구의 일환으로 채식을 하는 비구니스님을 대상으로 하여 연구한 결과를 요약하면 다음과 같다. 조사 대상자의 평균나이는 채식인 44.20세, 비채식인 40.52세, BMI는 각각 22.47, 21.08이었고, WHR은 0.85, 0.84였고, %BF는 28.79, 26.55였으며, 채식인의 평균채식기간은 13.16년이었다. 조사 대상자의 영양소 섭취실태는 채식인은 모든 영양소가 권장량을 상회하였고, 비채식인은 Ca, 비타민 A가 권장량을 미달하였다. 섬유소와 비타민 C 섭취량은 채식인이 유의적으로(p<0.01) 높았다. 조사 대상자의 소비에너지는 채식군 1789.84 kcal, 비채식군 1703.83 kcal로 채식군이 유의하게 많았고(p<0.05), 활동량도 채식군 507.76 kcal, 비채식군 400.03 kcal로 채식군이 유의하게 높았다(p<0.01). 조사 대상자의 total cholesterol, LDL-cholesterol, AI, 이완기혈압 및 혈당은 비채식인이 유의적으로(p<0.01) 높았고, HDL-cholesterol은 (p<0.05) 비채식인이 유의적으로 높았으며 심질환 예견지수인 HDL/total cholesterol 비는 채식인이 유의적으로(p<0.01) 높았다. 활동량은 두군 모두 중성지방, 혈청 총 콜레스테롤, LDL-cholesterol, AI와는 역상관을 보였다(p<0.05). 이상의 결과에서 채식군은 비채식군에 비해 혈중지질 수준, 혈당, 혈압에 영향을 미치는 것으로 알려진 BMI, RBW, WHR,%BF가 유의적으로 높았음(p<0.05)에도 불구하고 혈정 총콜레스테롤, LDL-choleserol, AI 및 수축기혈압이 유의적으로 낮았는데 이는 여러가지 요인이 있겠지만 채식군이 비채식군에 비해 섬유소, 비타민 C의 섭취량 및 활동량이 유의하게(p<0.01) 높았기 때문으로 생각된다. 따라서 혈중지질 수준, 혈당, 혈압에 영향을 미치는 것은 식이요인 뿐만 아니라 활동량 등 여러가지 생활양식이 영향을 미치는 것으로 볼 수 있다.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제11권sup1호
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• pp.102-108
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• 2008

최근 소아, 청소년의 비만이 늘고 있는 추세이다. 소아 청소년의 비만치료는 섭취열량과 소비열량과의 균형을 맞추는 것이 가장 중요한 원칙이다. 소아, 청소년기는 성장과 발달이 왕성한 시기이므로 단식, 절식 등의 식이요법만으로 단시간 내에 체중을 감량하는 것은 바람직하지 않다. '몸짱'같은 건강한 몸매는 운동을 통하지 않고는 이룰 수 없다는 인식을 심어주며 성장에 지장을 주지 않는 범위 내에서 적당한 운동을 유도하는 것이 좋다. 소아는 의지가 약하고 인내심이 부족하므로 부모와 가족의 이해와 협력이 필요하며, 아동이 좋은 습관을 가질 수 있도록 아동의 수준에 맞는 적당한 운동 프로그램을 제시하는 것이 요망된다. 아동에게 억지로 운동을 강요해서는 안되며, 본인이 재미있어 하면서 충격이 심하지 않은 운동을 선택하도록 한다. 하루에 1시간 정도의 운동이 필요하지만 전혀 움직이지 않던 아동은 수시로 짬짬이 움직일 수 있는 상황을 제공해주는 것이 중요하다. 비만은 체중을 단기간에 감소시키는 것이 아니라 '평생에 걸쳐 조절하여야 하는 것'으로 인식되어야 할 것이다.

• 한국산학기술학회논문지
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• 제16권1호
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• pp.617-626
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• 2015

본 연구는 제 5기 전체(2010~2012)국민건강영양조사 자료를 이용하여 우리나라 노인의 신체활동 정도와 의료이용과의 관련성을 파악하기 위하여 실시하였다. 연구결과에서 비활동적인 신체활동군과 비교하여 활동적 신체활동군의 경우에 입원이용 가능성이 0.54배(OR;95% CI, p<0.001), 외래이용은 0.73배(OR;95% CI, p=0.040), 약국이용은 0.75배(OR;95% CI, p<0.007) 더 낮으것으로 나타났으며, 의료이용 횟수도 감소하는 것으로 나타났다. 또한, 최소 신체활동군의 경우에 비활동적 신체활동군과 비교하여 입원 의료이용 가능성이 0.64배(OR;95% CI, p<0.001) 낮고, 이용횟수도 감소하는 것을 확인하였다. 결론적으로 노인의 신체활동 정도에 따라서 의료이용과의 관련성을 확인하였다는 데 의의가 있으며, 신체활동을 활발하게 실천하는 것이 노인의 건강증진과 삶의 질을 향상시킬 뿐만 아니라 의료비 지출의 감소에도 도움이 될 것으로 사료된다.

• The Journal of Korean Physical Therapy
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• 제14권1호
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• pp.27-37
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• 2002

This is the study of the knee joint injured patients at the orthopaedic surgery clinic where is located in Daejon, who has MCL combine injured ACL reconstruction caused by sport activity and accident during the period from Jan. 2001 to Oct. 2001. By comparing with groups between 7th case of I-group for MCL combined stitch and II-group for ACL reconstruction since 6weeks cast. We have been concluded with that following results. 1. Range of motion for the knee was not limited at 5th case(37%) of I-group, 6th case(42%) of II-group and the cases of Flexion deficit less then 10 -degree were 2nd case(13%) of I-group and II-group 1st case(8%) with no extension deficit more then 5 -degree. 2. The level of activity that tells you whether you are capable of exercise for six month after operation. It han been divided by 3 levels. The case of capable of doing low risk exercise(swimming, cycling, etc.) was 5th case of I-group, the case of capable of doing medium risk exercise(jogging, etc.) was 3rd case of I-group and 4th case of II-group and the case of capable of doing high risk exercise(football, etc.) were 3rd case of I-group and 3rd case of II-group. 3. The timing of the return to their job were average 6.4 weeks for I-group and average 22.9 weeks for II-group(P<.05, statistical difference). 4. There was no statistical difference between I-group and II-group for the timing of the return to their job(P>.05). 5. By using VAS to compare them there was no statistical difference between I-group and II-group of clinical results according to Lysholm scale.

• Journal of Korean Biological Nursing Science
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• 제3권1호
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• pp.11-28
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• 2001

This study was to identify the levels of perceived stress, immunity cells, physical health and depression, and their relationships among those variables in the elderly who institutionalized comparing home residents. The result of this study can be used as basic data when applying nursing interventions to increase quality of life in the elderly. The questionnaires to estimate stress, health status and depression were collected through direct interview from July to August in 1999 and immunity cells were measured by venous blood specimen collected from 9 to 10 A.M. during the same period. The collected data were analysed using SAS program. The results were as follows. The score of perceived stress of all subjects was 38.49 and perceived stress score of institutionalized elderly(42.62) was significantly higher than that in home resident elderly(34.52). All immune cells tested in this study such as total T cell, helper T cell, suppressor T cell, T4/T8 ration, total B cell, and NK cell, were all under the standard criteria of cells distributions. Most elderly who institutionalized and reside home replied that their health status was not good. However their physical health activity was mostly good even though institutionalized elderly had more disability than home residents. The highest rate was 67.3% as disability due to arthritis. The score of depression in all subjects was 8.2 that indicated having depressive symptom. There was no difference in the depression level between institutionalized elderly and home resided elderly. There was a significant correlationship between physical health and depression, however, the rest of varibles did not show any significant relationships. In summary, the immune cells in the elderly who replied perceiving low level stress, was under normal range. Their health status was perceived as 'not good' but physical health activity was perceived as 'good'. The relationships of stress, immunity, physical health and depression were partially significant but not had evidence as enough as theoretically the suggested relationship. We suggest that further studies using large sample size and more diverse variables should be performed.

• Biomolecules & Therapeutics
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• 제6권3호
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• pp.232-241
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• 1998

This study was done to investigate whether cholic acid derivatives have anti-stress activity in various stress models. Two cholic acid derivatives, ursodeoxycholic acid (UDCA) and tauroursodeoxycholic acid (WDCA), were used. physical, psychological, chemical and environmental stress models were performed. Adrenal weight, serum glucose levels and ALP activity were elevated in restraint stress model, but this elevation was prevented by UDCA treatment. Moreover, UDCA and TUDCA inhibited exploratory and spontaneous movements in oscillation stress model. In alcohol-induced stress model, TUDCA improved rotarod performance. UDCA and TUDCA significantly reduced the involution of lymphoid organs and the increment of WBC counts in cold stress model. These findings suggest that choric acid derivatives have antistress effects in various stress models.

• 국제학술발표논문집
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• The 8th International Conference on Construction Engineering and Project Management
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• pp.443-452
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• 2020

Worker's awkward postures and unreasonable physical load can be corrected by monitoring construction activities, thereby increasing the safety and productivity of construction workers and projects. However, manual identification is time-consuming and contains high human variance. In this regard, an automated activity recognition system based on inertial measurement unit can help in rapidly and precisely collecting motion data. With the acceleration data, the machine learning algorithm will be used to train classifiers for automatically categorizing activities. However, input acceleration data are extracted either from designed experiments or simple construction work in previous studies. Thus, collected data series are discontinuous and activity categories are insufficient for real construction circumstances. This study aims to collect acceleration data during long-term continuous work in a construction project and validate the feasibility of activity recognition algorithm with the continuous motion data. The data collection covers two different workers performing formwork at the same site. An accelerator, as well as portable camera, is attached to the worker during the entire working session for simultaneously recording motion data and working activity. The supervised machine learning-based models are trained to classify activity in hierarchical levels, which reaches a 96.9% testing accuracy of recognizing rest and work and 85.6% testing accuracy of identifying stationary, traveling, and rebar installation actions.

• 동서간호학연구지
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• 제13권1호
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• pp.48-56
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• 2007

Purpose: This is a descriptive research to examine the levels of ADL, self efficacy, and life satisfaction of elderly institution residents, and the relations among the factors. Method: Data were collected through a questionnaire survey of elders aged over 65 at nursing homes in 9 areas throughout the country. Measures were the physical function scale, the general self efficacy scale, and LSI Z. Collected data were analyzed using SAS/PC11.0. Result: First, the mean levels of ADL, self efficacy, and life satisfaction were 2.83 (0.85), 2.79 (0.63), and 1.18 (0.42). Second, the relations among three factors were showed positive correlations. Third, (1) The level of ADL was statistically significantly different according to health condition, religious activity, volunteer activity, and friend meeting. (2) The level of self efficacy was statistically significantly different according to health condition, source of help, religious activity, volunteer activity, friend meeting, and elderly school & senior center. (3) The level of life satisfaction was statistically significantly different according to health condition, source of help, religious activity, volunteer activity, friend meeting, and elderly school & senior center. Conclusion: Conclusively, it is required to enhance ADL and self-efficacy in order to improve elderly institution residents’ life satisfaction.